<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>后盾人 - houdunren.com</title>
  </head>
  <body>
    <div id="app"></div>
    <div id="hd"></div>
    <script>
      var app = 'houdunren'
      console.log(window.app)

      //   function getElementByIds(...ids) {
      //     const tags = []
      //     ids.map(id => {
      //       tags.push(document.getElementById(id))
      //     })
      //     return tags
      //   }
      //   console.log(getElementByIds('app', 'hd'))

      //   const app = document.getElementById('app')
      //   console.log(document.body.getElementById)

      //   console.log(app)
    </script>
  </body>
</html>
